On Sep 18, 2014, at 3:49 PM, Josh Cartwright <jo...@codeaurora.org> wrote:
> On Thu, Sep 18, 2014 at 03:47:20PM -0700, Kumar Gala wrote: >> On Sep 18, 2014, at 3:32 PM, Josh Cartwright <jo...@codeaurora.org> wrote: >> >>> By converting to the restart_notifier mechanism for restart, we allow >>> for other mechanisms, like the watchdog, to be used for restart in the >>> case where PS_HOLD has failed to reset the chip. >>> >>> Choose priority 128, as according to documentation, this mechanism "is >>> sufficient to restart the entire system?. >> >> Will we use a higher priority for watchdog? or how would we fail over to >> watchdog? > > The registered restart handlers are called in (descending) priority > order. This driver registers as 128, but conceivably there could be > some super-board-specific restart mechanism that can register itself as > higher priority than this and it will be attempted first. > > If PS_HOLD doesn't work, the lower priority restart handlers will > continue to be called, including the watchdog, which is registering with > the lowest priority (0). Cool, thanks. - k -- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
